In your opinion, what does writing quality code mean?

Quality code:

• Readable and understandable: Easily perceived by other developers (and yourself in the future).
• Maintainable: Easy to modify, fix bugs, and add new features.
• Reliable: Works correctly and predictably under various conditions.
• Efficient: Has acceptable performance and uses resources optimally.
• Testable: Easy to write automated tests to verify its functionality.
• Standards-compliant: Follows accepted coding style and architectural principles.
• Documented (if necessary): Key decisions and complex parts of the code are explained.

Examples of aspects of quality code:

• Naming: Use meaningful names for variables, functions, and classes.
• Structure: Logical separation of code into modules, functions, and classes.
• No duplication: Avoid repeating the same code.
• Error handling: Proper response to exceptional situations.

# Example of readable and clean code
def calculate_order_total(items):
    """
    Calculates the total cost of items in an order.
    """
    total_price = 0
    for item in items:
        total_price += item.price * item.quantity
    return total_price

# Example of less quality code (unclear names, no comments)
def calc(a):
    t = 0
    for b in a:
        t += b[0] * b[1]
    return t

Comparison table:

Aspect	Quality code	Poor quality code
Readability	Easy to read and understand	Difficult to grasp
Maintainability	Easy to modify and improve	Difficult to make changes
Testability	Easy to write automated tests	Difficult to automate testing